JPH0211317A - Manufacture of molding - Google Patents
Manufacture of moldingInfo
- Publication number
- JPH0211317A JPH0211317A JP16376288A JP16376288A JPH0211317A JP H0211317 A JPH0211317 A JP H0211317A JP 16376288 A JP16376288 A JP 16376288A JP 16376288 A JP16376288 A JP 16376288A JP H0211317 A JPH0211317 A JP H0211317A
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- cutting blade
- cut
- cutting
- molding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000465 moulding Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 19
- 229920003002 synthetic resin Polymers 0.000 claims description 17
- 239000000057 synthetic resin Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 abstract description 14
- 239000011347 resin Substances 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は熱可塑性合成樹脂成形品を切断してモールデ
ィングを製造する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of manufacturing a molding by cutting a thermoplastic synthetic resin molded product.
車両用の合成樹脂モールディングの製造方法として、熱
可塑性合成樹脂の押出成形品や射出成形品などの合成樹
脂成形品を切断してモールディングを製造する方法があ
る。ところが合成樹脂成形品を切断すると、切断面が露
出して装飾性を害するとともに、エツジが危険であるた
め、切断部にエンドキャップを形成するなどの端末処理
を行う必要がある。As a method for manufacturing synthetic resin moldings for vehicles, there is a method of manufacturing a molding by cutting a synthetic resin molded product such as an extrusion molded product or an injection molded product of thermoplastic synthetic resin. However, when a synthetic resin molded product is cut, the cut surface is exposed, impairing its decorative properties, and the edges are dangerous, so it is necessary to perform terminal treatment such as forming an end cap on the cut portion.
このような点を改善するために、冷却した合成樹脂成形
品を、高周波電圧を印加した切断刃により切断する方法
が提案されている（特開昭５４−１１９７７号）。In order to improve this problem, a method has been proposed in which a cooled synthetic resin molded product is cut using a cutting blade to which a high frequency voltage is applied (Japanese Patent Laid-Open No. 11977/1983).
しかしながら、このような従来の方法では、切断刃に高
周波電圧を印加しているため、切断刃付近の樹脂が溶融
して、他の部分とは異なった外観を有する切断面が形成
されるとともに、溶融部分に切断刃が接するために、切
断面が乱れて装飾性を害するという問題点があった。However, in such conventional methods, since a high frequency voltage is applied to the cutting blade, the resin near the cutting blade melts, forming a cut surface that has a different appearance from other parts, and Since the cutting blade comes into contact with the molten portion, there is a problem in that the cut surface is disturbed and the decorativeness is impaired.
この発明の目的は、上記問題点を解決するため、他の部
分と連続した優れた外観を有する曲面状の端部が形成さ
れ、かつ切断面が目立たず、優れた装飾性を有するよう
に切断することが可能なモールディングの製造方法を提
案することである。An object of the present invention is to solve the above-mentioned problems by forming a curved end that is continuous with other parts and has an excellent appearance, and which is cut so that the cut surface is not conspicuous and has excellent decorative properties. The purpose of the present invention is to propose a manufacturing method for moldings that can be used to produce moldings.
この発明は、 ａ）熱可塑性合成樹脂から所望の外表
面を有する成形品を得る工程、
ｂ）前記成形品の切断部にほぼ沿った部分を、その部分
以外の部分よりも高温に加熱する工程、および
Ｃ）加熱された部分の外表面部が内部よりも硬度が高く
なるようにした状態で切断刃を外表面側から前進させて
成形品の一部を切除する工程を含むモールディングの製
造方法である。This invention includes the steps of: a) obtaining a molded article having a desired outer surface from a thermoplastic synthetic resin; b) heating a portion of the molded article substantially along the cut portion to a higher temperature than the other portions. , and C) a method for manufacturing a molding comprising the step of cutting out a part of the molded product by advancing a cutting blade from the outer surface side in a state where the outer surface of the heated part has a higher hardness than the inside. It is.
この発明において熱可塑性合成樹脂としては、スチレン
樹脂、塩化ビニル樹脂、ポリオレフィン樹脂などが使用
できる。また、合成樹脂成形品としては、押出成形品、
射出成形品などがあげられる。In this invention, as the thermoplastic synthetic resin, styrene resin, vinyl chloride resin, polyolefin resin, etc. can be used. In addition, as synthetic resin molded products, extrusion molded products,
Examples include injection molded products.
合成樹脂成形品の加熱は、切断部にほぼ沿った狭い領域
を、その部分以外の部分よりも高温に加熱する。このと
き合成樹脂成形品の外表面が常温の空気等により冷却さ
れる状態で、高周波誘電加熱により切断部を全体加熱す
る方法が好ましいが、加熱流体の吹付、遠赤外線等によ
り加熱してもよい。When heating a synthetic resin molded product, a narrow region substantially along the cut portion is heated to a higher temperature than the rest of the region. At this time, it is preferable to heat the entire cutting part by high-frequency dielectric heating while the outer surface of the synthetic resin molded product is cooled by room-temperature air, but heating may also be done by spraying heating fluid, far infrared rays, etc. .
合成樹脂成形品の切断は、上記により加熱された部分の
外表面部が内部よりも硬度が高い状態で切断刃を外表面
側から前進させて切断する。この場合切断部の外表面側
に冷却流体を吹付けながら切断を行うと、成形品の外表
面が冷却されて硬度が高くなり、切断刃も冷却されて切
断性がよくなる。The synthetic resin molded product is cut by advancing the cutting blade from the outer surface side while the outer surface of the heated portion is harder than the inside. In this case, when cutting is performed while spraying a cooling fluid onto the outer surface of the cutting part, the outer surface of the molded product is cooled, increasing its hardness, and the cutting blade is also cooled, improving cutting performance.
切断刃の前進速度は合成樹脂成形品の外表面部が途中で
切断されない程度の速度であることが望ましい。切断に
際しては、成形品にテンションを加えた状態で切断する
のが望ましい。The advancing speed of the cutting blade is preferably such that the outer surface of the synthetic resin molded product is not cut halfway. When cutting, it is desirable to cut the molded product while applying tension.
この発明のモールディングの製造方法においては、熱可
塑性合成樹脂成形品の切断部にほぼ沿った狭い領域を加
熱して内部を軟化させ、外表面部は内部よりも硬度が高
い状態で、切断刃を外表面側から前進させると、外表面
部は硬度が高いため切断刃により切断あるいは破断され
ることなく押され、このため内部の軟化状態の樹脂は周
辺部に移動する。この状態で切断刃がさらに前進すると
。In the molding manufacturing method of the present invention, a narrow area along the cut portion of a thermoplastic synthetic resin molded product is heated to soften the inside, and the cutting blade is inserted while the outside surface is harder than the inside. When advanced from the outer surface side, the outer surface portion is pushed by the cutting blade without being cut or broken due to its high hardness, and therefore the softened resin inside moves to the peripheral portion. If the cutting blade advances further in this state.
切断部の外表面部は不要な盛上がりや変形等がなく、他
の部分と連続した外観を保ったまま曲面状に変形して１
曲面状の端部が形成された状態で切断される。切断面は
内部の樹脂が露出しない状態で、裏面側に狭い幅で形成
されるので外表面側がら目立たず、エンドキャップ等の
端末処理をしなくても、優れた外観のモールディングが
得られる６〔実施例〕
以下１本発明を図面の実施例により説明する。The outer surface of the cut part has no unnecessary bulges or deformations, and is deformed into a curved shape while maintaining a continuous appearance with other parts.
It is cut with a curved end formed. The cut surface is formed with a narrow width on the back side without exposing the internal resin, so it is not noticeable from the outside surface side, and a molding with an excellent appearance can be obtained without the need for terminal processing such as end caps6. [Example] The present invention will be explained below by referring to an example shown in the drawings.
第１図ないし第３図は切断装置の正面図、第４図はその
一部の斜視図、第５図は第１図のＡ方向矢視図、第６図
および第７図は成形品の平面図、第８図ないし第１１図
は切断状態を示す断面図、第１２図は製造されたモール
ディングの一部の斜視図、第１３図はそのＢ−Ｂ断面図
、第１４図はＣ−Ｃ断面図である。Figures 1 to 3 are front views of the cutting device, Figure 4 is a perspective view of a portion thereof, Figure 5 is a view taken in the direction of arrow A in Figure 1, and Figures 6 and 7 are views of the molded product. 8 to 11 are sectional views showing the cut state, FIG. 12 is a perspective view of a part of the manufactured molding, FIG. 13 is a BB sectional view thereof, and FIG. 14 is a C-- It is a sectional view of C.
図において、１は受台で、成形品２を載置し、長手方向
に移動できるように両側にサイドガイド３が形成されて
いる。受台１の成形品載１ｄ部４（第１〜３図の右側）
の長手方向中央部には開口部５が設けられており、受台
１上を往復動する搬出具６に取付ボルト７により接続す
るブラケット８が開口部５を通して下に伸び、ロッドレ
ス流体圧シリンダ９の移動体ｌＯに接続している。また
受台１の下側には、載置される成形品２の切断部に対応
する部分に下部電極１１が設けられて、スプリング１２
により固定台１３に引張られており、４本の調節ボルト
１４により電極面のレベルを調節できるようになってい
る。In the figure, reference numeral 1 denotes a pedestal on which a molded product 2 is placed and side guides 3 are formed on both sides so that the molded product 2 can be moved in the longitudinal direction. Molded product mounting part 1d 4 of pedestal 1 (right side in Figures 1 to 3)
An opening 5 is provided in the center in the longitudinal direction of the rodless hydraulic cylinder 9 , and a bracket 8 connected by a mounting bolt 7 to a carrying tool 6 reciprocating on the pedestal 1 extends downward through the opening 5 . is connected to the mobile unit IO. Further, on the lower side of the pedestal 1, a lower electrode 11 is provided at a portion corresponding to the cut portion of the molded product 2 to be placed, and a spring 12 is provided.
It is pulled by a fixed base 13, and the level of the electrode surface can be adjusted using four adjustment bolts 14.
受台１の上方には下部電極１１に対向する位置に切断刃
１５が上下動可能に設けられており、固定プレート１６
に固定された流体圧シリンダ１７のロッド１８により成
形品２の外表面に向って前進、後退し、下部電極１１と
の間で成形品２を切断するようになっている。第６回に
おいて２１は切断線を示しており、切断刃Ｉ５はこの切
断線２１と同形状となっている。切断刃１５はセラミッ
ク、非磁性金属にセラミックを蒸着した材料などからな
り、成形品２の切除部２２側にテーパ而２３を有し、刃
先はあまり鋭利にされていないが、その先端は平滑にさ
れているのが好ましい。A cutting blade 15 is provided above the pedestal 1 at a position facing the lower electrode 11 so as to be movable up and down, and a fixed plate 16
A rod 18 of a fluid pressure cylinder 17 fixed to the rod 18 moves forward and backward toward the outer surface of the molded product 2, and cuts the molded product 2 between it and the lower electrode 11. In the sixth time, 21 indicates a cutting line, and the cutting blade I5 has the same shape as this cutting line 21. The cutting blade 15 is made of a material such as ceramic or non-magnetic metal with ceramic vapor-deposited, and has a taper 23 on the side of the cutout 22 of the molded product 2, and the cutting edge is not very sharp, but the tip is smooth. It is preferable that the
受台１の上方には、切断刃１５の後退時に切断刃】５と
同じ軌跡を上下動するように、加熱装置としての上部電
極２４が設けられている。上部電極２４は第７図に示す
ように、切断部（切断線）２１とほぼ同一形状で、前進
時に下部電極１１との間に高周波電圧を印加して、切断
部２１にほぼ沿った部分を加熱するようになっている。An upper electrode 24 as a heating device is provided above the pedestal 1 so as to move up and down in the same trajectory as the cutting blade 5 when the cutting blade 15 retreats. As shown in FIG. 7, the upper electrode 24 has almost the same shape as the cutting part (cutting line) 21, and when moving forward, a high frequency voltage is applied between it and the lower electrode 11 to cut a part almost along the cutting part 21. It is designed to heat up.
上部電極２４はシリコンＦＲＰｉｌの取付部材２５を介
してベースプレート２６に取付けられている。ベースプ
レート２６には弾性材料製のクランプ２７も取付けられ
ている。またベースプレート２６は連結棒２８により流
体圧シリンダｚ９のロッド３０に連結されて、上下動す
るようになっている。流体圧シリンダ２９は、別の流体
圧シリンダ３１のロッド３２により水平方向に移動する
スライドプレート３３に、支持脚３４およびスタンドプ
レート３５により固定されている。流体圧シリンダ３１
は固定プレート３６に固定されており、スライドプレー
ト３３は固定プレート３６．３７間に固定されたガイド
捧３８に沿って水平移動するようになっている。The upper electrode 24 is attached to the base plate 26 via a silicon FRPil attachment member 25. A clamp 27 made of an elastic material is also attached to the base plate 26. Further, the base plate 26 is connected to a rod 30 of a fluid pressure cylinder z9 by a connecting rod 28, so that it can move up and down. The hydraulic cylinder 29 is fixed by a support leg 34 and a stand plate 35 to a slide plate 33 that is moved in the horizontal direction by a rod 32 of another hydraulic cylinder 31 . Fluid pressure cylinder 31
is fixed to a fixed plate 36, and the slide plate 33 is adapted to move horizontally along a guide bar 38 fixed between the fixed plates 36 and 37.
３９、４０はガイド孔である。39 and 40 are guide holes.
固定プレート３６には流体圧シリンダ４１が固定されて
おり、そのロッド４２にはクランプ４３が設けられて上
下動し、成形品２の非切除部４４を受台１に押付けてク
ランプするようになっている。クランプ４３と反対側に
は別のクランプ４５が配置され、その先端に設けられた
ピン４６を成形品２の切除部２２に食い込ませた状態で
クランプするようになっている。クランプ４５はスライ
ドプレート４７に取付けられた流体圧シリンダ４８のロ
ッド４８ａに連結棒４９により取付けられて、上下動す
るようになっている。またスライドプレート４７は固定
プレート５０に固定された流体圧シリンダ５１のロッド
５２に取付けられ、固定プレート５０．５：３間に固定
されたガイド棒５４に沿って水平方向に移動できるよう
になっている。A fluid pressure cylinder 41 is fixed to the fixed plate 36, and a clamp 43 is provided on the rod 42 of the cylinder 41, which moves up and down to press and clamp the uncut portion 44 of the molded product 2 against the pedestal 1. ing. Another clamp 45 is disposed on the opposite side of the clamp 43, and is configured to clamp the molded product 2 with a pin 46 provided at its tip biting into the cutout 22 of the molded product 2. The clamp 45 is attached to a rod 48a of a fluid pressure cylinder 48 attached to a slide plate 47 by a connecting rod 49, and is configured to move up and down. Further, the slide plate 47 is attached to a rod 52 of a fluid pressure cylinder 51 fixed to a fixed plate 50, and is movable in the horizontal direction along a guide rod 54 fixed between fixed plates 50.5:3. There is.
５５は切断刃１５の前進時に切断部２１の外表面に向っ
て、非切除部４４側から冷却空気を吹付けるノズルであ
る。６１は製造されたモールディング、６２は端部、６
３は切断面である。55 is a nozzle that blows cooling air toward the outer surface of the cutting portion 21 from the non-cutting portion 44 side when the cutting blade 15 moves forward. 61 is the manufactured molding, 62 is the end portion, 6
3 is a cut surface.
モールディング６１の製造方法は、ます熱可％７Ｊ性合
成樹脂から押出成形、射出成形等により、所望の外表面
を有する成形品２を製造し、これを受台１の成形品載置
部４に載置して切断を行う。The manufacturing method of the molding 61 is to manufacture a molded product 2 having a desired outer surface by extrusion molding, injection molding, etc. from a thermoplastic %7J synthetic resin, and then place it on the molded product mounting portion 4 of the pedestal 1. Place and cut.
第１図は成形品２の切断を終了して、搬出具６により成
形品２（モールディング６１）が搬出された状態を示し
ており、この状態からロッドレス流体圧シリンダ９によ
り、搬出具６がａ方向に後退させた後、成形品載置部４
に新しい成形品２を位置決め載置し、流体圧シリンダ４
１を駆動してクランプ４３を前進させ、成形品２の非切
除部４４をクランプする。同時に流体圧シリンダ５１に
よりスライドプレー１−４７がａ方向に前進した状態で
、流体圧シリンダ４８によりクランプ４５がＣ方向に前
進（下降）して成形品２の切除部２２をクランプし、ピ
ン４６がその外表面に押付けられる。FIG. 1 shows a state in which the molded product 2 (molding 61) has been transported out by the transport tool 6 after cutting the molded product 2. From this state, the rodless fluid pressure cylinder 9 moves the transport tool 6 to a After retreating in the direction, the molded product placement section 4
Position and place the new molded product 2 on the fluid pressure cylinder 4.
1 to advance the clamp 43 and clamp the uncut portion 44 of the molded product 2. At the same time, while the slide plate 1-47 is advanced in the direction a by the fluid pressure cylinder 51, the clamp 45 is advanced (lowered) in the direction C by the fluid pressure cylinder 48 to clamp the cutout part 22 of the molded product 2, and the pin 46 is pressed against its outer surface.
このとき流体圧シリンダ１７により切断刃１５をｄ方向
に後退（上昇）させた状態で、流体圧シリンダ３１によ
りスライドプレート３３をｂ方向に前進させ、さらに流
体圧シリンダ２９によりベースプレート２６をＣ方向に
前進（下降）させる。これによりクランプ２７は成形品
２に押付けられて切断部２１近傍をクランプし、上部電
極２４は成形品Ｚの切断部２１に対向する位置にセット
される。第２図および第８図はこの状態を示している。At this time, with the fluid pressure cylinder 17 retracting (raising) the cutting blade 15 in the d direction, the fluid pressure cylinder 31 advances the slide plate 33 in the b direction, and the fluid pressure cylinder 29 moves the base plate 26 in the C direction. Move forward (downward). As a result, the clamp 27 is pressed against the molded product 2 and clamps the vicinity of the cut portion 21, and the upper electrode 24 is set at a position facing the cut portion 21 of the molded product Z. FIGS. 2 and 8 show this state.
この状態で上部電極２４と下部電極１１の間に高周波電
圧を印加して、高周波誘電加熱により、成形品２の切断
部２１に沿った狭い領域の樹脂を加熱する。高周波誘電
加熱により成形品２の切断部２１付近の樹脂は外表面部
２ａ、内部２ｂとも均等に常温以上の温度に加熱される
が、外表面部２ａは常温の空気で冷却されるため、内部
２ｂより低温となる。そこで内部２ｂが軟化する程度に
加熱すると、外表面部２ａは内部２ｂよりも硬度が高く
なる。５６は加熱部で、各点の密度は温度の高さを示し
ている。In this state, a high frequency voltage is applied between the upper electrode 24 and the lower electrode 11 to heat the resin in a narrow region along the cut portion 21 of the molded product 2 by high frequency dielectric heating. By high-frequency dielectric heating, the resin near the cutting part 21 of the molded product 2 is heated equally to a temperature higher than room temperature on both the outer surface 2a and the inside 2b, but since the outer surface 2a is cooled by air at room temperature, the inside The temperature is lower than that of 2b. Therefore, when heated to such an extent that the inside 2b becomes soft, the outer surface portion 2a becomes harder than the inside 2b. 56 is a heating section, and the density of each point indicates the temperature.
この状態で前記と逆の動作で流体圧シリンダ２９．３１
により上部電極２４をｄおよびａ方向に後退させて第１
図の位置に復帰させ、代りに流体圧シリンダ１７により
切断刃１５をＣ方向に前進させて切断を行う。この状態
は第３図および第９〜１１図に示されている。In this state, the fluid pressure cylinder 29.31 is operated in the opposite manner to the above.
, the upper electrode 24 is moved back in the d and a directions and the first
The cutting blade 15 is returned to the position shown in the figure, and the cutting blade 15 is moved forward in the C direction by the hydraulic cylinder 17 instead to perform cutting. This condition is shown in FIG. 3 and FIGS. 9-11.
このとき流体圧シリンダ５１によりクランプ４５をｂ方
向に引いて成形品２にテンションをかけた状態で、流体
圧シリンダ１７により、第９図に示すように、ノズル５
５から冷却用空気を吹付けながら。At this time, with the fluid pressure cylinder 51 pulling the clamp 45 in the direction b to apply tension to the molded product 2, the fluid pressure cylinder 17 causes the nozzle 5 to open as shown in FIG.
While blowing cooling air from step 5.
切断刃１５を外表面側から前進させると、外表面部２ａ
は硬度が高いため、第１０図に示すように、切断刃１５
により切断あるいは破断されることなく、そのまま引伸
ばされるように押され、内部２ｂの樹脂は周辺部に移動
する。このとき切断刃１５の切除部２２側はテーパ而２
３が形成されているため、樹脂がテーパ而２３に沿って
押出される。内部２ｂの樹脂の一部は非切除部４４側に
移動して盛上がりを形成しやすいが、クランプ４５によ
りテンションをかけることにより、盛上がりは防止され
る。When the cutting blade 15 is advanced from the outer surface side, the outer surface portion 2a
As shown in FIG. 10, the cutting blade 15 has high hardness.
The resin in the interior 2b moves to the periphery without being cut or broken. At this time, the cutting portion 22 side of the cutting blade 15 is tapered 2
3 is formed, the resin is extruded along the taper 23. A portion of the resin in the interior 2b tends to move toward the uncut portion 44 and form a bulge, but this bulge is prevented by applying tension with the clamp 45.
この状５７Ｍで切断刃１５がさらに前進すると、第１１
図に示すように、モールディング６１となる非切除、部
４４．外表面部２ａは、他の部分と連続した外観を保っ
たまま曲面状に変形して、曲面状の端部６２が形成され
た状態で、切断刃１５と下部電極１１の間で切断され、
第１２図ないし第１４図に示すようなモールディング６
１が製造される。下部電極１１の上面は切断刃１５の先
端と一致するように調節ボルト１４によってレベル調節
することにより、成形品２を完全に切断することができ
る。When the cutting blade 15 moves further in this state 57M, the 11th
As shown, the uncut portion 44. which becomes the molding 61. The outer surface portion 2a is deformed into a curved shape while maintaining an appearance continuous with other portions, and is cut between the cutting blade 15 and the lower electrode 11 with a curved end portion 62 formed.
Molding 6 as shown in FIGS. 12 to 14
1 is produced. The molded product 2 can be completely cut by adjusting the level of the upper surface of the lower electrode 11 using the adjustment bolt 14 so that it coincides with the tip of the cutting blade 15.
切断刃１５によって形成される切断面６３は、内部２ｂ
の樹脂が外表面側に露出せず、外表面部２ａと裏面部２
ｃとが溶着した状態で、裏面部２ｃ付近に形成され、外
表面側から目立たない、従ってエンドキャップ等により
切断面６３を端末処理しなくても。The cutting surface 63 formed by the cutting blade 15 is
The resin is not exposed on the outer surface side, and the outer surface portion 2a and the back surface portion 2
c is welded and formed near the back surface portion 2c, and is not noticeable from the outer surface side, so there is no need to terminate the cut surface 63 with an end cap or the like.
優れた外観のモールディング６１が得られ、そのままの
状態で使用可能である。A molding 61 with an excellent appearance is obtained and can be used as is.
切断後流体圧シリンダ１７によって切断刃１５をｄ方向
に後退させ、第１図に示すようにロッドレス流体圧シリ
ンダ９により搬出具６を駆動し、切断された切除部２２
および製造されたモールディング６１をｂ方向に搬出し
、上記操作を繰返えす。After cutting, the cutting blade 15 is moved back in the d direction by the hydraulic cylinder 17, and the carrying tool 6 is driven by the rodless hydraulic cylinder 9 as shown in FIG.
Then, the manufactured molding 61 is carried out in the direction b, and the above operation is repeated.
上記の方法では、加熱装置としての上部電極２４および
切断刃１５を選択的に駆動して同一位置を加熱および切
断するため、切断部２１にほぼ沿った狭い領域の樹脂の
みを加熱軟化させて切断することができ、これにより端
部６２がだれることがなく、連続した曲面状の優れた外
観を有する端部６２が形成される。上部電極２４と切断
刃１５を並べて配置し。In the above method, the upper electrode 24 as a heating device and the cutting blade 15 are selectively driven to heat and cut the same position, so that only the resin in a narrow area roughly along the cutting part 21 is heated and softened and cut. As a result, the end portion 62 does not sag and has a continuous curved surface with an excellent appearance. The upper electrode 24 and the cutting blade 15 are arranged side by side.
切断刃１５を上部電極２４と平行に移動させる場合には
切断部付近の広範囲の領域を加熱する必要があるため、
端部６２がだれて連続した曲面が形成できないが、狭い
領域のみを加熱すると、このようなことはなく、上記の
ような連続した曲面状の端部６２が形成される。When moving the cutting blade 15 parallel to the upper electrode 24, it is necessary to heat a wide area near the cutting part.
Although the end portion 62 is sagging and a continuous curved surface cannot be formed, heating only a narrow region prevents this from happening and forms the continuous curved end portion 62 as described above.
本発明によれば、熱可塑性合成樹脂成形品の切断部にほ
ぼ沿った部分を加熱して内部を軟化させ。According to the present invention, a portion of a thermoplastic synthetic resin molded article substantially along the cut portion is heated to soften the inside.
外表面部は内部よりも硬度が高くなるような状態で、切
断刃を前進させて切断するようにしたため。This is because the outer surface is harder than the inside, and the cutting blade moves forward to cut.
他の部分と連続した優れた外観を有する曲面状の端部が
形成され、かつ切断面が目立たず、優れた外観を有する
モールディングを簡単な操作により製造することができ
る。A molding in which a curved end portion that is continuous with other parts and has an excellent appearance is formed, the cut surface is not noticeable, and the molding has an excellent appearance can be manufactured by a simple operation.
この場合、切断部以外は軟化しないで硬度の高いまま保
たれるので、切断時にモールディング側に不要な盛上が
りや変形の発生が防止され、また切断部のみを加熱する
ので短時間で切断でき、生産性が向上するとともに、エ
ネルギー消費を少なくすることができる。In this case, the parts other than the cut part do not soften and remain highly hard, which prevents unnecessary bulges and deformations on the molding side during cutting.In addition, since only the cut part is heated, cutting can be done in a short time, resulting in production production. In addition to improving performance, energy consumption can be reduced.
第１図ないし第３図は切断装置の正面図、第４図はその
一部の斜視図、第５図は第１図のへ方向矢視図、第６図
および第７図は成形品の平面図、第８図ないし第１１図
は切断状態を示す断面図、第１２図は製造されたモール
ディングの一部の斜視図。
第１３図はそのＢ−Ｂ断面図、第１４図はＣ−Ｃ断面図
である。
各図中、同一符号は同一部分を示し、１は受台、２は成
形品、６は搬出具、 ９． ［７，２９，３１，４１゜
４８、５］は流体圧シリンダ、１１は下部′Ｍ、極、１
５は切断刃、２１は切断部、２２は切除部、２４は上部
電極、２７．４３．４５はクランプ、５５はノズル、５
６は加熱部。
６１はモールディング、６２は端部、６３は切断面であ
る。
代理人 弁理士 柳 原 成
を
第６図
第７図
第１２図
第１３図
第１４図Figures 1 to 3 are front views of the cutting device, Figure 4 is a perspective view of a portion thereof, Figure 5 is a view taken in the direction of the arrow in Figure 1, and Figures 6 and 7 are views of the molded product. A plan view, FIGS. 8 to 11 are cross-sectional views showing a cut state, and FIG. 12 is a perspective view of a part of the manufactured molding. FIG. 13 is a sectional view taken along the line BB, and FIG. 14 is a sectional view taken along the line CC. In each figure, the same reference numerals indicate the same parts, 1 is a pedestal, 2 is a molded product, 6 is a carrying tool, 9. [7, 29, 31, 41° 48, 5] is the fluid pressure cylinder, 11 is the lower part'M, pole, 1
5 is a cutting blade, 21 is a cutting part, 22 is a cutting part, 24 is an upper electrode, 27, 43, 45 is a clamp, 55 is a nozzle, 5
6 is a heating section. 61 is a molding, 62 is an end portion, and 63 is a cut surface. Agent: Patent Attorney Sei Yanagihara: Figure 6, Figure 7, Figure 12, Figure 13, Figure 14
Claims (4)
成形品を得る工程、 ｂ）前記成形品の切断部にほぼ沿った部分を、その部分
以外の部分よりも高温に加熱する工程、および ｃ）加熱された部分の外表面部が内部よりも硬度が高く
なるようにした状態で切断刃を外表面側から前進させて
成形品の一部を切除する工程を含むモールディングの製
造方法。(1) a) a step of obtaining a molded article having a desired outer surface from a thermoplastic synthetic resin; b) a step of heating a portion of the molded article substantially along the cut portion to a higher temperature than the other portion; and c) a method for manufacturing a molding, which includes the step of cutting out a part of the molded product by advancing a cutting blade from the outer surface side in a state where the outer surface of the heated part has a higher hardness than the inside.
に配置し、成形品の反対側に配置した他の電極との間に
高周波電圧を印加して加熱するようにした請求項第１項
記載の方法。(2) A claim in which an electrode having substantially the same shape as the cutting blade is placed on the outer surface of the molded product, and a high frequency voltage is applied between the electrode and another electrode placed on the opposite side of the molded product to heat the product. The method described in paragraph 1.
から成形品に向けて加熱流体を吹出すようにした請求項
第１項記載の方法。(3) The method according to claim 1, wherein the heated fluid is blown toward the molded product from the tip of a plate-shaped heating tool having substantially the same shape as the cutting blade.
体を吹付けながら切断するようにした請求項第１項ない
し第３項のいずれかに記載の方法。(4) The method according to any one of claims 1 to 3, wherein the cutting is performed while spraying a cooling fluid toward the outer surface of the molded product while the cutting blade is moving forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63163762A JPH0653390B2 (en) | 1988-06-30 | 1988-06-30 | Molding manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63163762A JPH0653390B2 (en) | 1988-06-30 | 1988-06-30 | Molding manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0211317A true JPH0211317A (en) | 1990-01-16 |
| JPH0653390B2 JPH0653390B2 (en) | 1994-07-20 |
Family
ID=15780224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63163762A Expired - Lifetime JPH0653390B2 (en) | 1988-06-30 | 1988-06-30 | Molding manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0653390B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532670A (en) * | 1978-08-31 | 1980-03-07 | Kyoshin Shokai:Kk | Process for high-frequency welding and cutting of synthetic leather, sheet or film |
| JPS5828328A (en) * | 1981-07-31 | 1983-02-19 | Ishizuka Kk | Fusion-bonding and cutting method for synthetic resin sheet or film with high frequency radio wave |
| JPS6394696U (en) * | 1986-12-09 | 1988-06-18 |
-
1988
- 1988-06-30 JP JP63163762A patent/JPH0653390B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5532670A (en) * | 1978-08-31 | 1980-03-07 | Kyoshin Shokai:Kk | Process for high-frequency welding and cutting of synthetic leather, sheet or film |
| JPS5828328A (en) * | 1981-07-31 | 1983-02-19 | Ishizuka Kk | Fusion-bonding and cutting method for synthetic resin sheet or film with high frequency radio wave |
| JPS6394696U (en) * | 1986-12-09 | 1988-06-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0653390B2 (en) | 1994-07-20 |
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